Date & Time Calculators
Calculate age, date differences, time durations, birthdays, due dates, and more with our 17 free date and time calculators.
All Date & Time Calculators
Age - Calculate Your Exact Age
Free age calculator to find your exact age in years, months, weeks, days, hours, and minutes. Calculate age from birthday or between any two dates.
Bandwidth - Download Time & Data Transfer
Free bandwidth calculator to estimate download times, data transfer rates, and required bandwidth for streaming, backups, and file transfers.
Birthday Finder | Day of Week & Age
Find what day of the week you were born on and calculate your exact age in years, months, and days. Free birthday calculator.
Date Difference - Days Between Two Dates
Free date difference calculator. Find the number of days, weeks, months, and years between any two dates. Calculate time spans easily.
Day Counter | Days Between Dates
Count the number of days between two dates. Calculate business days, weekends, and total days. Free date calculator.
Days to Cover | Short Interest Ratio Analysis
Calculate days to cover (short interest ratio) for stocks. Analyze short selling pressure with our free financial calculator.
Dog Years - Convert Dog Age to Human Years
Free dog years calculator to convert your dog's age to human years. Uses the latest scientific formula based on DNA methylation for accurate results.
DSCR - Debt Service Coverage Ratio
Free DSCR calculator to measure ability to service debt. Calculate debt service coverage ratio for loan qualification and financial analysis.
Due Date - Pregnancy Due Date Estimator
Free due date calculator to estimate when your baby will arrive. Calculate your pregnancy due date based on LMP, conception date, or IVF transfer date...
Food Cost Percentage - Restaurant Profitability
Free food cost percentage calculator for restaurants. Calculate actual food cost, ideal cost, and variance to improve kitchen profitability.
Gas Mileage - Calculate MPG and Fuel Efficiency
Free gas mileage calculator to find your vehicle's MPG. Calculate fuel efficiency, compare trips, and track your car's performance with our easy-to-us...
GPA - Calculate Your Grade Point Average
Free GPA calculator to compute your grade point average. Add courses, credits, and grades to instantly calculate your cumulative and semester GPA.
Height - Feet/Inches to Centimeters, Meters
Free height converter between feet, inches, centimeters, and meters. Perfect for medical records, international comparisons, and everyday conversions.
Inflation - Calculate Purchasing Power Over Time
Free inflation calculator to see how inflation affects your money. Calculate future prices, past values, and real investment returns adjusted for infl...
Percentage - Calculate Percentages Easily
Master all types of percentage calculations with our comprehensive tool. Calculate percentages, percentage changes, find parts and wholes with precisi...
Roof Area | Roofing Square Footage
Calculate roof area and roofing squares needed. Estimate shingles, underlayment, and materials. Free roof calculator.
Time - Add, Subtract & Calculate Time
Free time calculator to add and subtract hours, minutes, and seconds. Calculate time differences and convert between time units easily.
Popular Date & Time Calculators
Age - Calculate Your Exact Age
Free age calculator to find your exact age in years, months, weeks, days, hours, and minutes. Calculate age from birthday or between any two dates.
Calculate NowBandwidth - Download Time & Data Transfer
Free bandwidth calculator to estimate download times, data transfer rates, and required bandwidth for streaming, backups, and file transfers.
Calculate NowBirthday Finder | Day of Week & Age
Find what day of the week you were born on and calculate your exact age in years, months, and days. Free birthday calculator.
Calculate NowDate Difference - Days Between Two Dates
Free date difference calculator. Find the number of days, weeks, months, and years between any two dates. Calculate time spans easily.
Calculate NowDay Counter | Days Between Dates
Count the number of days between two dates. Calculate business days, weekends, and total days. Free date calculator.
Calculate NowDays to Cover | Short Interest Ratio Analysis
Calculate days to cover (short interest ratio) for stocks. Analyze short selling pressure with our free financial calculator.
Calculate NowAbout Date & Time Calculators
Our date and time calculators help you perform complex temporal calculations instantly. Whether you need to find your exact age in years, months, and days, calculate the number of days between two dates, or determine pregnancy due dates, these tools provide accurate results with clear breakdowns.
All calculations account for leap years, varying month lengths, and timezone considerations where applicable. Perfect for planning events, tracking milestones, managing projects, or satisfying your curiosity about time-related questions.
Pro Tips
- Bookmark this calculator for quick access in the future
- Use the share button to send your results to others
- Try different scenarios to compare outcomes
- Check out our related calculators for more insights
Found this calculator helpful? Share it with others: